-
Extra Firm
-
On Sale
Mancini's Sleepworld Diamond Extra Firm Mattress 11"-Twin XL
-
In Stock
Mancini's Sleepworld Diamond Extra Firm Mattress 11"
Why this Mattress?
- Firm-coil support keeps spine aligned all night
- Stretch knit cover moves with you, not against you
- Heavy-gauge coil system resists sagging long-term
- Motion separation for undisturbed deep sleep
- CertiPUR-US certified foams, safe for home use
Overview
Mancini's Sleepworld Diamond Extra Firm Mattress 11" · Twin XL
The Mancini's Sleepworld Diamond Extra Firm Mattress 11" is a hybrid mattress built for back sleepers and stomach sleepers who need maximum pushback from their bed. If you've been sinking into your current mattress and waking up with a stiff lower back, this is the mattress designed to fix that. The extra firm mattress for back pain relief it provides comes from a coil system wound with super heavy-gauge wire, layered beneath a heavyweight 4-way stretch knit quilt cover that gives just enough surface flex without compromising the foundation beneath it. Stop by any Mancini's Sleepworld location and our sleep specialists will put this right next to every competing option so you can feel the difference yourself.
COMFORT AND FEEL: Extra firm with a flat, planted surface feel and strong upward support throughout the night.
SIZE: This Twin XL sized mattress is ideal for taller solo sleepers, college students, or adults in a dedicated single bedroom.
BEST SLEEP MATCH: Best suited for back and stomach sleepers who need a firm mattress for back sleepers that holds the hips level and stops the lumbar from rounding overnight.
BEST FOR: Ideal for sleepers who wake up with low back stiffness, need strong postural support, or prefer a flat, no-sink sleep surface.
CONSTRUCTION SPECIFICATIONS: The heavyweight stretch-knit cover flexes without losing its shape. Beneath it, firm-support foam layers cushion the surface without softening the feel. A fabric-wrapped coil system built with super heavy-gauge wire delivers the structural pushback that keeps your spine honest. Super high-density upholstery-grade foam in the base keeps this mattress from compressing out after years of use. Foams are CertiPUR-US certified.
SETUP AND COMPATIBILITY: Works with adjustable bases, platform frames, and traditional box springs. Delivered flat with professional in-home setup included.
NOT A FIT FOR: Side sleepers who need hip and shoulder pressure relief, or anyone who prefers a plush or medium feel.
YOUR SLEEP, BACKED BY US
At Mancini's Sleepworld, every mattress purchase comes with a 120-night comfort guarantee and our Best Price Guarantee, so you know you're getting the best deal available. Add a premium mattress protector at checkout and you can upgrade that to a full 365 nights. Come try this mattress in any of our stores before you buy, enjoy free next-day delivery with professional in-home setup, and ask about flexible financing options that fit your budget.
- SleepMatch: red
Rest Easy Promise
Our promise to you.
- 365-Night Comfort Guarantee with purchase of a premium mattress protector
- Best Price Guarantee Find it lower and we’ll match it.
- Free Next-Day Delivery We’ll deliver to your door, set-up available.
- Double-Your-Warranty We match the manufacturer’s warranty.
Features
- SKU: BRK-DIA-3XM-XF-25
- MPN: 25WICOTEF_FP33XL
- GTIN: 810146418733
- Brand: Mancini's
- Collection: Sleepworld
- Type: Innerspring
- Mattress In A Box: No
- Firmness: Extra Firm
- Height: 11
- Length: 80
- Width: 39
- Shipping Height: 11.5
- Shipping Width: 80
- Shipping Length: 38
- Warranty: 10 Year
- Cover Material: Polyester Knit
- Quilting Layers: 1 1/2'' Super Soft Quilt Foam
- Comfort Layers: 1 1/2'' Extra Firm Support H.D. Foam
- Support System: 720 13.5 Ga. Pocketed coil,0.75'' Shock Absorbing H.D. Base Foam
Specification
-
Suitable For Adjustable Base: Yes
-
Motion Separation: Yes
-
Edge Support: Yes